The JBO Thread Ring Gauge (GO) - Metric Fine is a precision go gauge designed to verify external thread diameters on metric fasteners and threaded components. This model is tailored for metric fine threads with a right-hand thread (6h, M48 x 1), making it a versatile tool for engineering, manufacturing, and quality teams needing fast, reliable acceptance checks.

Manufactured from hardened steel, the gauge delivers durable, wear‑resistant performance in demanding workshop environments. Its straightforward, purpose‑built design makes it easy to quickly identify properly conforming threaded components, supporting efficient quality control and precise engineering workflows.

• Precision GO gauge for metric fine threads: Enables accurate external thread diameter checks and fast pass/fail decisions against metric fine thread specifications.
• Hardened steel construction: Built to withstand frequent use in tough environments, ensuring long service life and consistent performance.
• User-friendly inspection tool: Intuitive design helps inspectors quickly confirm parts meet spec, reducing rework and downtime.

Used consistently in quality control processes, this gauge speeds up thread inspections, improves measurement reliability, and helps maintain tight tolerances across production runs. With durable materials and precise dimensions, it supports repeatable results, streamlined audits, and confidence in fit and function for your threaded assemblies.